<?php

namespace Lain;

class Ctimer {
   var $t_start = 0;
   var $t_stop = 0;
   var $t_elapsed = 0;
   
   function start() {
      $this->t_start = microtime();
   }
   function stop() {
      $this->t_stop = microtime();
   }
   function elapsed() {
      if ($this->t_elapsed) {
         return $this->t_elapsed;
      } else {
         $start_u = substr($this->t_start,0,10); 
         $start_s = substr($this->t_start,11,10);
         $stop_u = substr($this->t_stop,0,10);  
         $stop_s = substr($this->t_stop,11,10);
         $start_total = doubleval($start_u) + $start_s;
         $stop_total = doubleval($stop_u) + $stop_s;
         $this->t_elapsed = $stop_total - $start_total;
         return $this->t_elapsed;
      }
   }
};